CBS has released the synopsis for the next episode of The Big Bang Theory, "The Conference Valuation", which airs Thursday, March 7. Christine Baranski returns as Leonard's mother, Dr. Beverly Hofstadter.

The Conference Valuation – When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, Sheldon finds a book on experimenting on kids, and the guys plus Amy make a day of it, on THE BIG BANG THEORY, Thursday, March 7 (8:00-8:31 PM, ET/PT) on the CBS Television Network.

The Big Bang Theorywill be taking a short break this week. A rerun of "The VCR Illumination" will air this Thursday, February 28.

In other scheduling updates, a rerun will also air Thursday, March 14 with "The Propogation Proposition". The Big Bang Theory will then be off air for two weeks, March 21 and March 28, as CBS airs the March Madness basketball tournament. The final season of The Big Bang Theory will continue April 4 as CBS starts to air the last six episodes of the show.